African nation vs South West Africa

African nation and South West Africa both are nouns.

Word	Noun	Adjective	Verb	Adverb
African nation	Yes	No	No	No
South West Africa	Yes	No	No	No

African nation (noun)	South West Africa (noun)
any one of the countries occupying the African continent	a republic in southwestern Africa on the south Atlantic coast (formerly called South West Africa); achieved independence from South Africa in 1990; the greater part of Namibia forms part of the high Namibian plateau of South Africa